نتایج جستجو برای: modified graphite paste electrode

تعداد نتایج: 329944  

Journal: :Bioelectrochemistry 2005
Sergey Shleev Anna Jarosz-Wilkolazka Anna Khalunina Olga Morozova Alexander Yaropolov Tautgirdas Ruzgas Lo Gorton

Electrochemical studies of laccases from basidiomycetes, i.e., Trametes hirsuta, Trametes ochracea, Coriolopsis fulvocinerea, Cerrena maxima, and Cerrena unicolor, have been performed. Direct (mediatorless) electrochemistry of laccases on graphite electrodes has been investigated with cyclic voltammetry, square wave voltammetry as well as potentiometry. For all mentioned high potential laccases...

Jahanbakh Raoof Reza Ojani Seyed Reza Hosseini

In this work, spherical Pt nanometer-scale particles supported on the poly (m-toluidine)/Triton X-100 film modified carbon nanotube paste electrode (Pt/PMT (TX-100)/MCNTPE) was used as a potent catalyst for electrooxidation of formaldehyde (HCHO) in both 0.5 M H2SO4 and 0.1 M NaOH solutions. The obtained results showed that utilization of TX-100 as an additive during the electropolymerization p...

Journal: :IEEE Sensors Journal 2021

This paper presents a fabric based asymmetric supercapacitor (ASC) with metal coated cloths as the electrode and current collector. Graphite paste printed on silver textile (Berlin) is used negative nickel/copper/silver plated (Nora Dell) positive electrode. Biocompatible polyvinyl alcohol (PVA)-potassium chloride (KCl) gel electrolyte for ASC fabrication. During electrochemical process, oxides...

A chemically modified carbon paste electrode with 2-chlorobenzoyl ferrocene (2CBF) and carbon nanotube (2CBFCNPE) was employed to study the electrocatalytic oxidation of ascorbic acid in aqueous solution using cyclic voltammetry, square wave voltammetry and chronoamperometry. The diffusion coefficient (D = 1.42 × 10-6 cm2 s-1), and the kinetic parameter such as ...

2012
M. S. Risbud S. Baxter

Nickel modified carbon fibre electrodes were prepared by electrochemical oxidation and partial reduction of a graphite fibre electrode with a slow linear potential sweep in 97% H 2 SO 4 solution followed by impregnation & ionexchange with Ni +2 species. The cyclic voltammetry of the modified electrode in an alkaline medium showed electrocatalytic activity towards methanol oxidation which is con...

Journal: :The Analyst 2015
Christopher W Foster Ana P de Souza Jonathan P Metters Mauro Bertotti Craig E Banks

In this paper in situ bismuth, antimony, tin modified electrodes and combinations thereof are explored towards the model target analytes cadmium(II) and lead(II), chosen since they are the most widely studied, to explore the role of the underlying electrode substrate with respect to boron-doped diamond, glassy carbon, and screen-printed graphite electrodes. It is found that differing electroche...

Journal: :Biosensors & bioelectronics 2004
Andreas Christenson Eva Dock Lo Gorton Tautgirdas Ruzgas

Direct electron transfer (DET) was shown between the heme containing enzyme theophylline oxidase (ThO) and the surface of both graphite and gold electrodes. As proof on graphite a steady state current for theophylline was recorded using the electrode modified with adsorbed ThO. The electrode showed a Michaelis-Menten-like response to theophylline with a detection limit of 0.2 mM and a Michaelis...

2008
Msimelelo Siswana Kenneth I. Ozoemena Tebello Nyokong

It is shown that iron(II) tetra-aminophthalocyanine complex electropolymerized onto a multi-walled carbon nanotube-modified basal plane pyrolytic graphite electrode greatly enhanced the electrocatalytic detetion of amitrole (a toxic herbicide), resulting in a very low detection limit (0.5 nM) and excellent sensitivity of 8.80±0.44 μA/nM, compared to any known work reported so far. The electroca...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید